2/4 6max, AK should i go for the flip(s)?

[riverspecialist]

I been folding AK(and AQ) preflop to x3 reraises. I just dont like calling OOP or even in posi for that matter. I push if my allin 4bet is x6 or less, but i dont know what to do when its deeper than 100BB.

heres an example

2/4 6max(5 handed)
villian is 26/21 after 1300 hands

$706.50 in chips and i cover

hero [Ks Ac]
hero - Raises to $16
CO Folds
villian - Raises to $50
blinds Fold
hero ?

...Raises to $196
villian to $704 (allin)
hero?